BT
Betty Thompson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lee-County, Illinois
Our Model Tree links this Betty Thompson across the 1930 and 1940 US Censuses in Lee-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 8-person household.
Age 15
b. ~1925
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lee-County, Illinois |
| Surname | Thompson |
| Given Name | Betty |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Nelson village |
| 1935 Residence (County) | Lee |
| Additional Details | |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Nelson Village |
| Est. Birth Year | ~1925 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Betty | Age | Birth yr |
|---|---|---|---|---|
| Eleanor Thompson | Daughter | — | 17 | ~1923 |
| Frances Thompson | Daughter | — | 19 | ~1921 |
| Philip Lennon | Other | — | 2 | ~1938 |
| Walter Thompson | Head | — | 48 | ~1892 |
| Betty Thompson | Daughter | — | 15 | ~1925 |
| Gertrude Thompson | Spouse | — | 41 | ~1899 |
| Dorothy Thompson | Daughter | — | 13 | ~1927 |
| Helen Lennon | Daughter | — | 21 | ~1919 |
Census Appearances
1930
Lee, Illinois
Daughter, age 6
Lee, Illinois · implied b. ~1924 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Betty |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Iowa |
| Can Read/Write | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Lee-County, Illinois
Daughter, age 15
Lee-County, Illinois · implied b. ~1925 — 8 household members
| Surname | Thompson |
| Given Name | Betty |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Nelson village |
| 1935 Residence (County) | Lee |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Betty Thompson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Betty Thompson
Daughter · 1940 · age 15 · b. ~1925 · Illinois
★ You are viewing this record
Sibling
Helen Lennon
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Thompson
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanor Thompson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Thompson
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Lee-County, Illinois
Open full size
1940 US Federal Census — Lee-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00836-00808)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ray Babin | 13 | Son | — | Illinois |
| 2 | Walter Mcnabb | 61 | Head | Supervisor | Michigan |
| 3 | June Mcnabb | 28 | Daughter | — | Illinois |
| 4 | Alex Velre | 46 | Head | Section Laborer | Bulgaria |
| 5 | Maria Velre | 50 | Wife | — | Bulgaria |
| 6 | Victor Velre | 9 | Son | — | Illinois |
| 7 | John Schoof | 50 | Head | Engnr Watchman | Illinois |
| 8 | Pearl Schoof | 39 | Wife | — | Illinois |
| 9 | Betty Schoof | 17 | Daughter | — | Illinois |
| 10 | Ernest Schoof | 36 | Head | Shipping Clerk | Missouri |
| 11 | Kathryn Schoof | 32 | Wife | — | Illinois |
| 12 | Shirley Schoof | 4 | Daughter | — | Illinois |
| 13 | Patricia Schoof | 5 | Daughter | — | Illinois |
| 14 | Walter Thompson | 48 | Head | Engine Watchman | Denmark |
| 15 | Gertrude Thompson | 41 | Wife | — | Iowa |
| 16 | Frances Thompson | 19 | Daughter | — | Iowa |
| 17 | Eleanor Thompson | 17 | Daughter | — | Iowa |
| 18 | Betty Thompson THIS PERSON | 15 | Daughter | — | Iowa |
| 19 | Dorothy Thompson | 13 | Daughter | — | Illinois |
| 20 | Helen Lennon | 21 | Daughter | — | Iowa |
| 21 | Philip Lennon | 2 | Grandson | — | Illinois |
| 22 | Bessie Gale | 51 | Head | Teacher | Wisconsin |
| 23 | Betty Gale | 17 | Daughter | — | Illinois |
| 24 | Ralph Pritchard | 37 | Head | Laborer | Kansas |
| 25 | Nellie Pritchard | 29 | Wife | — | Oklahoma |
| 26 | Rose Marie Pritchard | 11 | Daughter | — | Kansas |
| 27 | Leo Pritchard | 9 | Son | — | Illinois |
| 28 | Lois Pritchard | 5 | Daughter | — | Illinois |
| 29 | Frank Dorty | 36 | Head | Laborer | Oklahoma |
| 30 | Johnnie Dorty | 34 | Wife | — | Florida |
| 31 | Geraldine Dorty | 11 | Daughter | — | Massachusetts |
| 32 | Patricia Dorty | 7 | Daughter | — | Alabama |
| 33 | Johnnie Dorty | 5 | Daughter | — | Alabama |
| 34 | Beverly Dorty | 2 | Daughter | — | Illinois |
| 35 | Christian Zanger | 80 | Head | — | Germany |
| 36 | Agnes Zanger | 79 | Wife | — | Germany |
| 37 | Harry W. Barnes | 42 | Head | Hired Man | Illinois |
| 38 | Alice Barnes | 34 | Wife | — | Wisconsin |
| 39 | Maxine Barnes | 11 | Daughter | — | Illinois |
| 40 | Gordon Barnes | 8 | Son | — | Illinois |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)